2 7/15 + 3 1/5 = n. Nilai n yang tepat adalah....

Jawaban:

[tex]2 \: \frac{7}{15} + 3 \frac{1}{5} \\ \\ = \frac{37}{15} + \frac{16}{5} \\ \\ = \frac{(37 \times 5) + (15 \times 16)}{15 \times 5} \\ \\ = \frac{185 + 240}{75} \\ \\ = \frac{425}{75} = 5 \frac{50}{75} = \frac{50 \div 5}{75 \div 5} = \frac{10}{15} = 5 \frac{10}{15} [/tex]

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